package com.ujiaoyu.api.service;

import com.ujiaoyu.api.entity.Course;
import com.baomidou.mybatisplus.extension.service.IService;

import java.util.List;

/**
 * <p>
 * 课程表 服务类
 * </p>
 *
 * @author ujiaoyu508
 * @since 2020-09-06
 */
public interface ICourseService extends IService<Course> {


    boolean updateSaleCount(Long courseId);

    List<Course> seletCourseList();
    List<String> selectAllCourseTitle();

}
